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52928420 = 22579139241
BaseRepresentation
bin1100100111100…
…1111110100100
310200121001010212
43021321332210
5102022202140
65130234552
71211612156
oct311717644
9120531125
1052928420
11279709a6
1215885a58
13ac722bc
14705aad6
1549a7765
hex3279fa4

52928420 has 48 divisors (see below), whose sum is σ = 113836800. Its totient is φ = 20666880.

The previous prime is 52928413. The next prime is 52928453. The reversal of 52928420 is 2482925.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 219500 + ... + 219740.

It is an arithmetic number, because the mean of its divisors is an integer number (2371600).

Almost surely, 252928420 is an apocalyptic number.

It is an amenable number.

52928420 is an abundant number, since it is smaller than the sum of its proper divisors (60908380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52928420 is a wasteful number, since it uses less digits than its factorization.

52928420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468 (or 466 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 52928420 is about 7275.1920936838. The cubic root of 52928420 is about 375.4593955041.

The spelling of 52928420 in words is "fifty-two million, nine hundred twenty-eight thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 79 139 158 241 278 316 395 482 556 695 790 964 1205 1390 1580 2410 2780 4820 10981 19039 21962 33499 38078 43924 54905 66998 76156 95195 109810 133996 167495 190390 219620 334990 380780 669980 2646421 5292842 10585684 13232105 26464210 52928420